Application of fuel consumption difference analysis method in a supercritical pressure oncethrough boiler

Abstract

Abstract: In order to study the influence of boilerside large and small energysaving indicators on the fuel consumption of oncethrough boilers, analysis was made on a supercritical pressure oncethrough boiler. Boilerside performance tests on variables affecting fuelconsumption were made under 100%, 75%，and 50% load ratios, and the test results were used to calculate and analyze the consumption difference. It was confirmed that oxygen in discharged gas, exhaust gas temperature, unburned combustible in fly ash and slag,boiler efficiency and service power rate of power plant would affect the fuel consumption for powersupply. Through the data tracing on fuel consumption distribution, the impact of each consumption indicator on the fuel consumption on boiler side was analyzed, which could provide a reference for power plants in evaluating operation indexes and inspecting performance of supercritical units.

Key words: supercritical, oncethrough boiler, fuel consumption for powersupply, consumption difference analysis, service power rate of power plant, unburned combustible in fly ash

WANG Zhiyong1，XU He2，ZHU Huimin3，GE Junpei1，XU Jing1. Application of fuel consumption difference analysis method in a supercritical pressure oncethrough boiler[J]. Huadian Technology, 2020, 42(1): 58-62.

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Application of fuel consumption difference analysis method in a supercritical pressure oncethrough boiler

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